To include :
- * Amateur Radio Direction Finding - FA
- * Amazon.com - B
- * Amber - B
- * Americas - B
- * America, Central - Stub
- * Amin, Idi - B
- * Quantity - B
- * Amyotrophic lateral sclerosis - B
- * Anesthesia - B
- * Anaximander - Start
- * Ancient Greece - B
- * Ancient Greek - B
- * Angle - B
- * Animation - Start
- * Anime - B
- * Ant - B
- * Susan B. Anthony - B
- * Antikythera mechanism - B
- * Anti-oxidant - B
- * Ape - B
- * Aphid - B
- * Apoptosis - B
- * Appendicitis - Start
- * Apple - B
- * Approval voting - B
- * Aqueduct - Start
- * Arabic calligraphy - Start
- * Arabic language - B
- * Arctic - Start
- * Arius - B
- * Arizona - B
- * Arm - B
- * ARPANET - B
- * Arrow - Start
- * Art criticism - Start
- * Art Deco - B
- * Art forgery - B
- * Arthritis - Start
- * Artificial intelligence - B
- * Artistic gymnastics - B
- * Arts and Crafts movement - B
- * Ascension Island - B
- * ASCII art - B
- * Ashoka - A
- * Astrolabe - Start
- * Astrology - B
- * AT&T - GA
- * Atanasoff - B
- * Atherosclerosis - B
- * Atlatl - B
- * Earth's atmosphere - B
- * Atomic clock - B
- * Mustafa Kemal Atatürk - B
- * Attention - B
- * Attic dialect - B
- * Attorney at law - B
- * Authority - B
- * Auto racing - Start
Unsure :
- Ralph Abernathy - Start
- Acrobatics - Start
- Acromegaly - B
- Model aircraft - B
- African art - B
- Age-Related Macular Degeneration - B
- Earth's atmosphere - Start
- Air brake (rail) - B
- Air conditioner - Start
- Airsoft - B
- Al-Ghazali - Stub
- All Saints - Start
- Alternative medicine - B (Fails Accuracy)
- Amniocentesis - Start
- Anaconda - Start
- Anaxagoras - Start
- Ancient Rome - B (Fails Accuracy)
- Hans Christian Andersen - B (Fails NPOV)
- Pamela Anderson - B
- Andrology - Stub
- Animal training - Start
- Antibiotic - Start
- Antlion - Start
- Apartment - Start
- Applause - Stub
- April - Start
- April Fool's Day - Start (Needs cleanup)
- Corazon Aquino - B
- Arabesque - Start
- Archery - B
- Archetype - Start
- Architect - Start
- Archontology - B
- Archytas - Start
- Aristophanes - Start
- Arkansas - B
- Armadillo - Start
- Armageddon (film) - Start
- Edwin H. Armstrong - Start
- Arquebus - Start
- Art and architecture of Babylonia and Assyria - Stub
- Art gallery - Start
- Art history - Start
- Art Nouveau - Start
- Chester A. Arthur - B
- Dentures - Start
- Arthur Ashe - Start
- Aspect of music - Start
- Assumption of Mary - B
- Atonality - B
- Attempt - B
- Crispus Attucks - B
- August - Start
- Augustus Siebe - Stub
- Auscultation - Stub
- Autograph - B
- Authentic performance - B
Not important enough :
- A cappella - Start
- Aardvark - Start
- Robert Abbott - Stub
- Abortion - B
- Academy - B
- Accelerated aging disease - Stub
- Accident - Stub
- Accidental - Start
- Accompaniment - Stub
- Achalasia - Start
- Acrylic - Start
- Act (theater) - Stub
- Adjustment - Stub
- Adrenal cortex - Start
- Aeolipile - Stub
- Aerobic exercise - Start
- Aerosol spray - Stub
- Afghan hound - Start
- African American art - Start
- Ageing - Start
- Memory and aging - Start
- Population ageing - Stub
- Agreement - Dab
- Aisle - Start
- Aladdin (1992 film) - Start
- Album - Stub
- Alexanderson, Ernst - Stub
- Alkyd - Stub
- All Souls' Day - Start
- Richard Allen (reverend) - Start
- Alligator - Start
- Alpine skiing - Stub
- Contesting - B
- Ambiguity - Start
- AMD - Start
- American handball - Start
- American Music Award - Stub
- Amoxicillin - Start
- Amusement - Stub
- Anatomical pathology - Stub
- Anaximenes of Miletus - Stub
- Anderson, Marian - Start
- Pterophyllum - Start
- Marine angelfish - Stub
- Maya Angelou - Start (Needs cleanup)
- Anglo-Saxon art - Stub
- Anger - Start (Fails OR)
- Animal husbandry - Start
- Answer - Stub
- Anteater - Start
- Antelope - Start
- George Antheil - Start
- Antiphon - Stub
- Antique - Start (Fails NPOV)
- Antique car - Stub
- Anti-realism - Stub
- Antisense therapy - Stub
- Australian and New Zealand Army Corps - Stub
- Aortic coarctation - Stub
- Machine - Stub
- Appendix - Dab
- Sir John Appleby - Stub
- Apse - Start
- Aqua-lung - Stub
- Aquatint - Start
- Yasser Arafat - B
- Arcade - Stub
- Arch - Start
- Architectural history - Start (Fails NPOV)
- Architrave - Stub
- Argument - Dab
- Richard Arkwright - Start
- Thomas Armat - Stub
- Armed Forces Day - Stub
- Armen Firman - Stub
- Armistice Day - Stub
- Army - Stub
- Arrangement - Start
- Art colony - Stub
- Art conservation and restoration - Stub
- Realism (arts) - Stub
- Joint - Stub
- Artificial heart - Stub
- Artificial life - Start
- Artificial ski slopes - Stub
- Artist - Stub
- Ashtray - Stub
- Asp (reptile) - Stub
- William Aspdin - Start
- Artistic revolution - Stub
- Arts and crafts - Stub
- Artwork - Dab
- Ascension - B
- Atrium (architecture) - Stub
- Attack - Dab
- Attraction - Dab
- Auction - Start (Needs cleanup)
- Audio mixing - Stub
- Augmented chord - Stub
- Australia Day - Start
- Autogyro - B
- Production line - Start
- [Internal combustion engine]] - B
- Automobile self starter - Start
- Autophagy - Stub
- Awake - Stub
- Axonometric projection - Stub